Gas at Fox is like any other car rental agent. Buy up front for convience and bring back empty or fill up before you return car - but bring your gas receipt.
They asked me when I got the car whether I wanted to purchase the gas in the tank or bring it back full. I always bring it back full.
You can do either.
Yes fill it ahead of time or the gas price there is much higher!
You return it with the same or more amount of fuel when you pick up. If no? They charge you otherwise you can pre paid for gas when you pick up your rental and drop it empty or with any amount doesn't matter because you pre pay for it.
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